I’m confused about my feelings about a guy I’ve been talking to

I had an encounter with a guy while I was walking around a local university and I was a bit struck by him because he had “THAT” aura. I tried to look for him to no avail and fast forward to a month ago when he followed me on IG and I was pretty shocked by this because what are the odds right? We eventually developed a connection in nearly a month and admitted that we are both attracted to each other. He was basically this good communicator until we had a little misunderstanding over his comments or “jokes” about me buying him stuff. I told him that I was a bit uncomfortable with it given that we haven’t pushed through with our plans to meet and that I don’t have much money yet. He apologized and then ended up ghosting me despite our conversation about being open about things that make us uncomfortable. Fast forward to a few days ago, I see him posting stories with his female friend on IG. No problem right? Everyone has friends of the opposite sex but then recently, he shared this story of him with the same friend where they looked like a couple. I am so confused because he was the one who keeps initiating things with me and then I see that and I feel let down and even a bit used. During the time that we connected with each other, I would work on myself and my trust issues due to trauma because I saw potential in the connection that we had. Having him do all this is a bit of a punch to it because just when i was about to open myself to someone, this happened. I feel confused given that they connected that fast just when this fothermucker was telling me that he was hoping that we’ll eventually be together in time. Idk his history with her and whether or not they had something all this time or he moved quickly to her as soon as we had that misunderstanding. I really have no idea and idk if contacting him would be a good idea since I find ghosting to be disrespectful.